Gas-heater.



L. F. BETTS.

GAS HEATER. APPLIQATION PILBDMAB. 25, 1910.

1,028,666, Patented June 4, 1912.

COLUMBIA PLANOGRAPH C0.,WASH|NG10N. nv

UNITED sTATns. PATENT OFFICE.

LEWIS F. BETTS, OF NEW YORK, N. Y., ASSIGNOR TO ABBOT A. LOW, 01? HORSE-SHOE, NEW YORK, ANDMAURICE J'. WOHL AND HARRY HERTZBERG, OF BROOKLYN,

NEW YORK, TRUSTEES.

GAS-HEATER.

Specification of Letters Patent.

Patented June 4, 1912.

Application filed March 25, 1910. Serial No. 551,412.

' 5 county of Kings, and State of New York,

have invented certain new and useful Improvements in Gas-Heaters, ofwhich the following is a specification.

This invention relates to gas heaters adapted for use with a gas burnerusing the ordinary illuminating gas.

The object of this invention is to provide a device of simpleconstruction which may be easily and cheaply manufactured and whichshall be efiicient in cases where a small amount of heat is required.

In carrying out my invention I provide a device formed of a single sheetof metal in which, by reason of the peculiar shape, the desired resultsare produced in a very simple and eflioient manner.

A further object of the invention resides in the peculiar relation ofthe difi'erently shaped portions of the device which enables the same tobe packed or nested together so as to occupy the minimum amount of spacefor shipment. This feature also affords an additional protection of thedevice against damage in shipment and materially reduces the labor andcost of packing.

Figure 1 is a sectional view of a gas heater embodying my invention.Fig. 2 is a plan view of Fig. 1.

The heating device shown in the drawing comprises an inverteddish-shaped member 1, preferably constructed of sheet metal. This member1 is provided at its central portion with a cylindrical projectingportion 2, which is preferably slightly tapered so that when several ofthese devices are placed together in packing these portions will fit oneinto the other. This cylindrical projecting portion 2 fits over theshell of theburner 3 and provides a support and means of attachment tothe burner. From this central portion 2 the heater is flared out andupwardly, as shown at 4, and terminates in a flat horizontal section 5.From the outer edge of this flat horizontal section 5 the heater isformed with a downwardly extending lip 6, from the lower edge of whichextends an outwardly and downwardly curved portion 7 terminating in arolled edge 8 to provide the necessary rigidity to the structure.

Theburner 3 is of peculiar construction, being provided with a chamberformed by cup-shaped members 9 and 10. These cupshaped members 9 and 10are formed with beaded port-ions around the adjoining edges thereof, oneof which is pressed or spun over the other to secure the same together.This annular projection or bead 11 upon the upper cup-shaped member 10also provides a stop and support against which the cylindrical portion 2of the heater is positioned and which assists in holding the same in ahorizontal position. The'lower portion of the burner 3 is provided witha tubular connection 12 for connecting. the same to an ordinary gasfixture in the manner shown in Fig. 1. A number of small orifices areprovided in the lower cup-shaped member 9, through which the gas passesand, when lighted, form a number of radially projecting jets which, onaccount of the upwardly and outwardly flaring portion 4 of the heater,are drawn out by the current of air, which follows this curved portionof the heater, in radially extending and upwardly curving flames whichproduce an intense heat. The construction of this burner is the same asshown in my 00- ending application filed contemporaneously herewithunder Ser. No. 551,413, filed March 25, 1910.

The currents of heated air first follow the curved portion 4 and theflat portion 5 of the heater and are then drawn sharply downwardly bythe depending portion 6 and are then allowed to spread downwardly andoutwardly, following the downwardly curved portion 7 of the heater. Theheated air is thus concentrated to a certain extent and forceddownwardly into the room.

Many experiments have been made with this form of heater, using variouscombinations of curved surfaces, and the one herein shown and describedhas been found to give very efficient results. If the gas jets arelighted before the heater is placed in position on the burner the samewill extend outwardly only a short distance, but immediately uponplacing the heater in position on the. burner the jets are drawn out toa greatly increased length, thus showing conclusively the operation ofthe air currents just described. The effect of these air currents is notonly to extend the flames of the as burner, but insures a continuous andresh supply of oxygen for combustion, thus producing a more intense heatfor'the same gas consumptlon.

While the form of heater herein shown and described is believed to bethe most efiicient, I do not wish to be understood as limiting myself tothe exact form shown, as it is possible to produce heaters of thistypewhich may be modified somewhat in the various details of constructionand it is'in tended that this particular form shown shall"- beconsidered as illustrative of such em- Y bodiments of the invention asmay come within the scope of the appended claim and I end portions ofwhich are formed with annular pressed-out project-ionsv engaging oneanother concentrically to thereby connect the two members of the bodytogether so that the upper member forms a closure for the upper end ofthe lower member, the

flower member being provided with a plurality of orifices in its sidesforming radially extendingjets' and" 'said jets being unobstructed so asto permit burning of the gas as it issues therefrom without previousadmixture with Signed at Brooklyn, N. Y., in the county of Kings andState of New York, this 23rd day of ,March, 1910.

l V LEWIS F. BETTSL Witnesses: l

H. HERTZBE-RG, GEO. WELLING Gmnmos.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C. 7

